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HOMEBREW Digest #5313
HOMEBREW Digest #5313 Sun 30 March 2008
FORUM ON BEER, HOMEBREWING, AND RELATED ISSUES
Digest Janitor: pbabcock at hbd.org
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Contents:
Re: Olive Oil (Fred L Johnson)
Electric Boiling Kettle Heating Element (Harlan Bauer)
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Date: Sat, 29 Mar 2008 06:43:34 -0400
From: Fred L Johnson <FLJohnson52 at nc.rr.com>
Subject: Re: Olive Oil
A.J. notes that Hull (New Belgium) couldn't easily justify risking a
fermentation without aeration and without any olive oil addition as a
control, but I hasten to reiterate that apparently New Belgium was
willing to risk a number of test fermentations on an addition of
unproven efficacy, i.e., olive oil, so I don't feel like letting him
(or New Belgium) off the hook on this one quite yet.
For all we know, perhaps there is a considerable amount of air
getting into New Belgium's wort (before or during fermentation)
without their making any special effort to add it (in line aeration).
Perhaps some air is pumped into the fermentor during the transfer of
wort from the lauter tun as the the lauter tun runs dry. Perhaps
there's a lot of air in the head space of the fermentor, especially
on smaller batches. These are not things one would ordinarily
concerns himself with since one is usually trying to get air into the
wort.
I can only speculate on alternative explanations of Hull's results
until I see the control data that says otherwise. I do admit to some
bias, and I'm sure my skepticism is showing. :0)
Fred L Johnson
Apex, North Carolina, USA
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Date: Sat, 29 Mar 2008 08:10:58 -0400
From: Harlan Bauer <harlan.bauer at gmail.com>
Subject: Electric Boiling Kettle Heating Element
Thank you to all who responded to my query about stainless steel drums!
OK, so I managed to score 3 55-gal stainless steel drums for my new
brewery. They are all the heavy type (~75-lbs) with removable lids and
rolled lips. They came from Fuji Potograpics (Japan) and appear to have
held some species of inkjet ink contained in a plastic liner. The actual
metal appears to be untouched by the ink and they appear to have only
been used once. Now I have to heat them. After some off-line
conversations, I'm sold on the idea of using low-watt density electric
elements for the hot liquor tank and probably the boiling kettle as
well.
Here's my problem: I went to the Chromalox web site
http://www.chromalox.com/
and the only ones I could find that would work for me were all 240
3-phase. Here's what I need:
1.) stainless steel threads and stainless low-watt density
element--they need to resist CIP chemicals (Birko Brew-R-ez &
Acid-brite)
2.) water resistent outer housing where the wiring gets
connected. These tanks are going to be permanantly mounted fixtures
that are going to be cleaned CIP; the room they will be housed in will
have a floor drain, so the outsides of the tanks WILL be hosed down.
Power is to be supplied with flexable waterproof conduit directly to
the element--no cords, no plugs, no hassle.
3.) How many watts am I going to need to bring 45 gallons of high
gravity wort to a rolling boil? Should I divide the wattage between 2
or 3 heating elements or should/can I use just one?
4.) Is an immersion element my only option? Is there any way I could
set up the boiling kettle along the lines of a giant rice cooker with
the heating element underneath the kettle?
5.) As a last resort, what about a phase converter? I've got a 200amp
service to power my cabinet shop, and I could conceivably put in a
phase converter to power a 3-phase circuit that would power both the
heating elements and any 3-phase stationary tools I acquire for my
shop. Any thoughts? Would I gain any efficiency by having a converter,
or would the efficiency of the 3-phase be lost in the converter? Does
anyone know anything about quality phase converters?
This is a long term project. I own 5-acres in the middle of nowhere.
I'm building the house myself and I intend to build a dedicated
building for the brewery--a tower, really, so that everything will flow
by gravity. The only pump is going to be used for CIP. The actual
design of the tower is going to follow the function of the brewery:
imagine all these tanks floating in mid air in the position where
they will be housed--the building will house that space...some people
like cars, I want a brewery.
harlan.
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End of HOMEBREW Digest #5313, 03/30/08
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